Start-Up Procedures
Start-Up Responsibility
The start-up organization is responsible for determining that
the furnace, as installed and as applied, will operate within the
limits specified on the furnace rating plate.
1 .
The furnace must not operate at an airflow below the
specified Minimum Airflow CFM (refer to
). On variable air volume systems it must
be determined that the furnace will not be operated
if or when system cfm is reduced below the specified
minimum airflow cfm.
2 .
It must be established that the gas supply is within the
proper pressure range (refer to
Start-up and service of this equipment must be performed
by trained and experienced technicians .
It is highly
recommended that the initial start-up and future service be
performed by Daikin trained technicians who are familiar with
working on live equipment. A representative of the owner or the
operator of the equipment should be present during start-up to
receive instructions in the operation, care and adjustment of
the unit.
Before Start-Up
1 .
Notify inspectors or representatives who may be required
to be present during start-up of gas fuel equipment.
These could include the gas utility company, city gas
inspectors, heating inspectors, etc.
2 .
Review the equipment and service literature and become
familiar with the location and purpose of the furnace
controls. Determine where the gas and power can be
turned off at the unit and before the unit.
3 .
Determine that power is connected to the unit and
available.
4 .
Determine that the gas piping, meter, and service
regulator have been installed, tested, and meet the
equipment requirements .
5 .
Determine that proper instruments will be available for
the start-up. A proper start-up requires the following:
voltmeter, manometer or gauges with ranges for both
manifold pressure and inlet gas pressure.
Start-Up Preliminary
Close gas main.
1 .
Check the burner fan wheel for binding, rubbing, or loose
setscrews.
2 .
Check power.
3 .
Purge the gas lines.
4 .
Leak check. Using a rich soap-water mixture and a
brush, check the gas lines for leaks. Correct all leaks
before starting furnace.
Operating Procedures
1 .
Set the controller to the lowest setting.
2 .
Turn off all electric power to the appliance.
3 .
This appliance is equipped with an ignition device which
automatically lights the burner. Do NOT try to light the
pilot by hand.
4 .
Open the control access panel.
5 .
Turn the gas control clockwise to “OFF”.
DANGER
Overheating or failure of the gas supply to shut
off can cause equipment damage, severe personal
injury or death .
Turn off the manual gas valve to the
appliance before shutting off the electrical supply.
DANGER
If you do not follow these instructions exactly, a fire
or explosion may result causing property damage,
personal injury, or loss of life .
A .
This appliance does not have a pilot. It is equipped
with an ignition device which automatically lights the
burner. Do not try to light the burner by hand.
B .
Before operating, smell all around the appliance area
for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the
floor .
WHAT TO DO IF YOU SMELL GAS:
•
Do not try to light any appliance.
•
Do not touch any electric switch, do not use any
phone in your building.
•
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
•
If you cannot reach your gas supplier, call the fire
department .
C .
Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in
or turn by hand, don’t try to repair it, call a qualified
service technician. Force or attempted repair may
result in a fire or explosion.
D .
Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of
the control system and any gas control which has
been under water.
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IM 1125-6 • REBEL ROOFTOPS
DOT-ITB-21-8041-AC
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